Casement-window attachment



Patented Sept. 3%, 1924.

isnt

THOMAS E. MACK AND ARTHUR E. ALLEN, OF LOS ANGELES, CALIFORNIA.

CASEMENT-W'INDGW ATTACHMENT,

Application filed April l2, 1924.

To all whom t may concer/a:

.l Be it known that we7 THOMAS E. Milon and ARTHUR E. ALLEN, citizens of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful lmprovements in Casement-lindow Attachments, of which the following is a specitica-tion.

This invention relates to a Casement window attachment and particularly to a weather strip or means for excluding cold air and moisture at the jointure between the lower part of the easement window sash and the sill or ledge of the window frame.

The primary object of the invention is to provide means for positively and effectively closing the crevice or crack between the bottom of a easement window sash and the adjacent portion or sill of the frame, to

'prevent the entrance of wind, rain or moisture generally. A further object of the invention is to provide a weather strip or attachment for a easement window which is comparatively simple in construction and readily operable and will not mar the appearance of the window organization by its application, or require material change or y mutilation in the structure of the easement window sash and frame to receive the several parts of the attachment.

With these and other objects and advantages in view, the invention consists in the construction and arrangement of the several parts which will be more fully hereinafter described and claimed.

In the drawing:

Fig. 1 is a sectional perspective view ot a easement window trame showing the casement window sash open and the attachment in elevated position;

Fig. 2 is a transverse vertical section through a easement window frame and sash, the latter being closed and illustrating the attachment also closed;

Fig. 3 is a front elevation of a portion of the attachment on an enlarged scale; and

Fig. l is an end elevation of the improved attachment showing a bearing :for a part thereof in section and portions of the casement window sash and frame in dotted lines.

The numeral 5 designates an ordinary easement window frame having a sill or ledge 6 and stool of the usual construction, a easement window sash 7 being hinged within the frame and provided with a lowei1 Serial No. 706,146.

frame member 8 and side members or stiles 9. The lower` frame member S and side stiles are formed with an outwardly opening groove 10 extending the full length of the outer lower corner portion of the frame member S and partially through the side members or Stiles 9. At a suitable position to one side of the vertical center of the lower frame member 8 an opening 11 is formed therethrough of suitable diameter and has tightly fitted therein a bearing sleeve 12 with opposite flanged ends 13, which serve to retain the same in applied position. To the lower edge of the member 8, at a distance inwardly from the inner terminal wall of the groove 10 a hinge plate 14 is secured and has a portion thereonc slightly bent upwardly into the groove 10 and formed with knuckles 15, between which is mounted a knuckle 16 at the central portion of the upper edge of a shield or weather strip plate 17, the knuckles 15 and 16 being pivotally connected by a rod or pintle 18 extending therethrough, as clearly shown by Fig. 3. The plate 17 is slightly bent, as at 17a, adjacent its point of pivoted or hinge connection, to properly dispose the knuckle 16 for insertion between the knuckles 15. The remaining portion of the plate 17 is fiat, to bearclosely against the outer edge of the ledge or sill 6, as shown by Fig r2, and cover the crevice or crack between the lower edge of the member 8 and the top surface of the said ledge or sill 6. Secured to the center of the outer side of the plate 17 near the free edge of the latter is a fulcrum attachment 19, comprising a central outwardly extending projection 20, which is flat and serves a function which will be presently explained. Within the sleeve 12 a crank shaft 21 is mounted `to freely rotate and has a crank 22 at its outer end and an operating handle or other analogous means 23 at its inner end. The crank 22 is of such length, as shown by Fig. 3, as to be effective in controlling the movement of the plate 17 when the latter is opened or closed. The free end of the crank 22 is slotted or bifurcated, as at 24, and therein is pivotally mounted a reduced upper extremity 25 of a stiff connecting rod or link 26, which in turn has its lower end vertically slotted. or bifurcated, as at 27, to fit over and be pivotally connected to the projection 2O of the iulcrum attachment 19 of the plate 17.

The operation of the improved device will be readily understood as being controlled through the actuation of the crank shaft 21. By pushing downwardly on the hand lever or other analogous device 23, the shaft 21 is correspondingly rotated and the crank 22 lowered. and through the link 2b the plate 17 will be closed or pushed dowir wardly against the outer edge of the ledge or sill 6, and thereby close the crevice or crack between the lower edge of the member 8 and the top surface of the said sill or ledge. A reverse upward movement of the hand4 lever or analogous device 23 will raise theplate 17 from engagement with the outer edge of the ledge or sill'G and permit the sash 7 to be drawn inwardly. yhe formation of the groove 10 provides for a maximum elevation of the plate 17 to clear the top surface of the ledge or sill 6, and also for a compact mounting` of the hinge plate 14: and the plate 17.v The reduced upper extremity 25 of the link 26 and the flattened` structure of the projection 20, pivotally connected within the slot or bifurcation 27 of the said link permit freedom of movement of these connected parts without liability of binding and also provide for an easy assemblage or pivotal connection of the said parts. It will be understood that the slots or bifurcations 24 and 2G will be of such length as to allow the upper reduced extrem ity 25 of the link 26 and the projection 2t) to move at different angles therein in aci-ordance with the adjustment of the crank 22 and the plate 17. `All the parts of the improved attachment are formed of suitable metal and may be constructed and sold as an attachment adapted for ready application to easement window sashes and frames now installed, the several parts of the improved device being reduced lo a minimum and the cost of manufacture and sale price thereby correspondingly decreased.

It will be understood that to accommodate various applications of the improved attachment, changes in the dimensions and general proportions may be adopted at will without departing from the nature or spirit of vthe invention.

What is claimed as new is:

1. A easement window*attachment of the class specified, comprising a weather strip plate, a hinge plate to which the weather strip plate is attached at its upper edge, a rigid link connected to the central outer portion of the weather strip plate,v a crank shaft having an outer crank pivotally connected toi the upper extremity of the link and having an operating means secured to the inner extremity thereof, and a bearing sleeve for the crank shaft, the hinge plate being attachable to the lower edge of a casement window sash and the bearing sleeve and crank shaft. adapted to be inserted through the lower portion of the said sash at one side of the vert-iealeenter of the latter.

2. In a easement window attachment, vthe combination with a easement window frame having a sill and a easement window hinged in the frame and provided with a groove in the lower outer portion thereof, a hinge plate secured to the lower edge of the lower portion of the sash and projecting upwardly into said groove7 a weather strip plate hinged at its upper end to the hinge plate in the groove and provided with an outwardly extending projection, a rigidrlink pivotally connected to the said projection, a bearing sleeve mounted in the lower portion of the sash at one side of the verticalcenter of the latter and nearthe upper edge thereof, and a crank shaft mounted in the bearing sleeve and having an operating means at its inner end and an outer crank terminally connected te the upper extremity of the link, the weather strip plate kbeing flat for a greater portion of its width to tigl'itly close against the outer edge of the sill of the frame and cover the crevice between the sill and the lower portion of the sash.

3. ln a easement window attachment, the combination with a easement window frame having a sill and a easement sash hinged therein, the sash having an outwardly opening groove in the lower member thereof, a weather strip plate hinged to the lower member of the sash and having its upper part free to move in the groove, the greater portion of the weather strip plate being Hat to close tightly against the outer edge of the sill of the frame, a crank shaft rotatably mounted in the lower member of the sash at one side of the vertical center of the latter and having inner operating means and an outer crank, and a rigid link pivotally connected to the outer side of the weather strip plate and the terminal of the crank,

In testimony whereof we have hereunto set our hands.

THOMAS E. MACK. ARTHUR E. ALLEN. 

